He underwent back surgery in September last year and made his comeback on Boxing Day, but feels now is the time to recuperate ahead of the clay court season in the build-up to the second Grand Slam of the year at the French Open, which begins on May 25, after skipping the event last season due to the back problem.

"I've played a lot of tennis this year. With the Davis Cup as well, that's an extra couple of weeks," Murray said.

"I also played in Rotterdam, another week. Acapulco was straight through into Miami, so it has been quite a long start to the year for me."

Murray did confirm he will be returning for the Masters 1000 event in the Spanish capital.

"I'm not playing until Madrid," he said. "I don't know exactly how long I will take off but I need to let my body recover.

"Although I maybe haven't won as many matches as in previous years, that doesn't mean that when you're at the tournaments you're not practising every day and preparing for those events."